Said lettenmayeb as



(ModeL) F. W. WARDWELL & O. E. LETTENMAYER.

Book Cover Protector. No. 234,096. Patented Nov. 2,1880.

21 4 WITNESSES T J%II%BNTOR BY VOW 0 6,

ATTORNEYS.

UNITED STATES PATENT OFFICE.

FRANK W. WARDWELL, OF CAMBRIDGE, AND CHARLES E. LETTENMAYER,

OF WEST LAMERVILLE, MASSACHUSETTS; SAID LETTENMAYER AS- SIGNOR TO SAIDWARDWELL.

BOOK-COVER PROTECTOR.

SPECIFICATION forming part of Letters Patent No. 234,096, dated November2, 1880.

Application filed August 31,1880. (ModeL) To all whom it may concern Beit known that we, FRANK WELLINGTON WARDWELL, of Cambridge, in the countyof Middlesex and State of Massachusetts, and

CHARLES ERFORD LETTENMAYER, of West Lamerville, in the county and Stateaforesaid, have invented a new and Improved Book- Oovering, of which thefollowing is a specification.

The object of our invention is to provide a new and improvedbook-covering which is simple in construction and effective in use.

In the accompanying drawings, Figure 1 is an inside View of our improvedbook-covering,

showing the same opened. Fig. 2 is a crosssectional elevation of thesame, showing the same closed and surrounding a book. Fig.3 is a sideview of the same, showing a larger book placed into it.

Similar letters of reference indicate corresponding parts.

The two stiff sides A A of the covering are each bent over on the innerside at the outer edge to form pockets B B to receive the outer 2 5 endsof the book-covers G U. The sides of the pockets B B are only attachedto the covers A A at the outer edges and at the bottom D, whereas theyare not attached at E, so as to permit books that are larger than thecov- 0 ering to be placed into the same, as shown in Fig. 3.

The stiff sides are connected by a pliable back, F, which can be foldedin case thin books are to be covered, as shown in Fig. 2.

3 5 A strap, string, or band, H, which may be of elastic material,cloth, or leather, as may be desired, is passed through the aperture Gin one of the sides A, passes across the back F on the outside, then upon the inside of the other side A, then passes over the back F again,passes through the upper aperture G in the side A, and the two ends arethen united, either by means of a buckle, J, or by knotting the band.

The book-covering is used as follows: The 5 book-covering is adjustedaccording to the thickness of the book by means of the band or strap H,for by decreasing the length of the same the back F is folded, so as toadapt the covering for a thinner book. The ends of the book-covers O Gare then placed into the pockets B B of the covering, which is held tothe book thereby. If the book is longer than the covering, it willproject beyond the same, as shown, and for this reason the upper ends of5 5 the pockets are not attached to the sides A A.

The straps may be attached to the sides A A at the inner edges, and maypass around the back of the covering only, and may also be provided withbuckles for adjusting them, if desired.

Having thus described our invention, What we claim as new, and desire tosecure by Letters Patent, is-

A covering for books consisting of two stiff sides, A A, connected by apliable back, F, the said sides A A being bent to form the pockets B Band provided with the band B, applied as shown and described.

FRANK W. WARDWELL. CHARLES E. LETTENMAYER.

Witnesses:

EDWIN H. DARLING, WM. K. J ONES.

